👉 Endocytosis is a process by which substances are taken up or released from cells into the surrounding environment, often through endocytes in the cytoplasm of a cell. This process can involve the uptake of lipids, proteins, and other cellular materials. It occurs primarily within the endoplasmic reticulum, where it is facilitated by vesicles called endosomes. Endocytosis plays a crucial role in many biological processes such as protein degradation, signal transduction,
